New Paragraph

Holistic advisory and consulting.

Sustainability and ESG Advisory Services


  • Enhanced Reputation: Improve brand reputation and stakeholder trust through transparent and responsible ESG practices.
  • Regulatory Compliance: Ensure compliance with current and emerging regulations, reducing legal and financial risks.
  • Risk Mitigation: Identify and mitigate ESG-related risks, enhancing operational resilience and sustainability.
  • Investor Attraction: Attract ESG-focused investors by demonstrating a commitment to sustainable practices.
  • Operational Efficiency: Achieve cost savings and operational efficiencies through sustainable resource management and process improvements.
  • Long-term Value: Create long-term value for the organization by integrating ESG principles into the core business strategy.


Sustainability and ESG advisory services are essential for organisations seeking to enhance their environmental, social, and governance performance. By adopting comprehensive strategies, companies can not only meet regulatory requirements and stakeholder expectations but also drive sustainable growth and create long-term value.

  We are happy when our Clients prosper. Leverage that and see your value reach unimaginable heights. 

Scale your business.

  We are happy when our Clients prosper. Leverage that and see your value reach unimaginable heights. 

Contact Us

Books & Practical Guides

At Green Wave Advisory, our work is grounded in practical experience: helping procurement, sustainability and supply chain teams turn strategy into action.

As part of this commitment, Mat Langley has authored and co-authored practical books for leaders and practitioners working across sustainable procurement, Scope 3 decarbonisation, circularity, responsible sourcing, data, AI and supplier engagement.

Sustainable Procurement in Action

Integrating Climate, Nature & Equity Across the Value Chain

Sustainable Procurement in Action is a practical guide for procurement, sustainability and supply chain teams who need to move from ambition to execution.

The book shows how organisations can embed climate, nature, social value, human rights, circularity, supplier engagement, data, AI and assurance into everyday procurement decisions. It is written for CPOs, category managers, sourcing teams, sustainability leaders, finance partners and suppliers who want practical tools rather than another high-level sustainability narrative.

View Sustainable Procurement in Action on Amazon

Circular Procurement in Action

Practical playbooks for offices, fit-outs, furniture and facilities

Co-authored by Hélène Carpentier and Mat Langley, Circular Procurement in Action focuses on how organisations can move from linear purchasing to circular workplace models.

The book provides practical playbooks for offices, fit-outs, furniture, facilities management, product-as-a-service, asset tracking, circular RFx models, repair, reuse, refurbishment, circular KPIs and data assurance. It is designed for procurement, workplace, facilities and sustainability teams who want to keep value in use for longer and make circularity operational.

[View Circular Procurement in Action]([insert link when public])

Together, these books reflect Green Wave Advisory’s core belief: sustainable procurement is not a side programme. It is how organisations make better commercial decisions, build more resilient supply chains and turn climate, nature and social commitments into measurable action.